| 钝体近尾流区的流动特性 |
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| 引用本文： | 明晓,戴昌晖.钝体近尾流区的流动特性[J].空气动力学学报,1988(1). |
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| 作者姓名： | 明晓 戴昌晖 |
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| 作者单位： | 南京航空学院
(明晓)，南京航空学院(戴昌晖) |
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| 摘 要： | 本文介绍了对钝体近尾流的时间平均流动特性进行试验研究的结果。试验中分别以圆柱体和三棱柱体为模型,考虑了几何形状和雷诺数对流动结构的影响。试验结果表明,对于高雷诺数情况,在“死水区”内,存在着与低雷诺数情况下类似的时间平均流动特性。最后,对尾流中涡街形成的机理进行了初步讨论。
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| 关 键 词： | 尾流 分离流 涡 气动力特性 |
THE CHARACTERISTICS OF NEAR WAKE BEHIND BLUFF BODIES |
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| Ming Xiao Dai Changhui.THE CHARACTERISTICS OF NEAR WAKE BEHIND BLUFF BODIES[J].Acta Aerodynamica Sinica,1988(1). |
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| Authors: | Ming Xiao Dai Changhui |
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| Institution: | Nanjing Aeronautical institute |
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| Abstract: | The characteristics of near wake behind bluff bodies have been experimentally investigated,including effects of Reynolds number and geometry.The results have shown the similarity of "dead water regions" for high Reynolds numbers and low Reynolds numbers.Finally,the mechanism of vortex street is briefly discussed. |
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| Keywords: | wakes separated flow vortex aerodynamic characteristics |
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